Device that converts electrical energy to mechanical energy to do work; basically has a power supply, a permanent magnet, and an electromagnet that can rotate.
Temporary magnet made by placing an iron core inside a current-carrying coil of wire and who strength can be increased by adding more turns to the wire loop or by increasing the amount of current in the wire.
Process in which electric current is produced by moving a wire loop through a magnetic field or by moving a magnet through a loop of wire.
A device that converts mechanical energy into electrical energy by rotating a wire coil through a magnetic field of a permanent magnet.
Groups of atoms having aligned magnetic poles
The magnetic effect of electric currents and magnetic materials. The magnetic field at any given point is specified by both a direction and a magnitude (or strength).
Region where a magnet's magnetic force is the strongest; like poles repel and opposite poles attract.
The properties and interactions of magnets.
A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field.
A device that increases of decreases alternating current generated by a power plant so it can enter homes safely.
Large wheel that rotates when pushed by steam, wind, or water and that provides mechanical energy to a generator.